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The NIST Cybersecurity Framework organizes its "core" material into five "functions" which are subdivided into a total of 23 "categories". For each category, it defines a number of subcategories of cybersecurity outcomes and security controls, with 108 subcategories in all.
Automatic number identification (ANI) [1] [2] is a feature of a telecommunications network for automatically determining the origination telephone number on toll calls for billing purposes. Automatic number identification was originally created by the American Telephone and Telegraph Company (AT&T) for long distance service in the Bell System ...
Direct-distance dialing (DDD) was first introduced in areas with common-control switching (panel and crossbar) in the 1950s.These areas had used 411 for directory assistance, and because of the ability of common-control switching to analyze the initial digits of a number in a "sender" before routing the call, these areas did not require the dialing of an initial 1 to initiate a long-distance call.
In the United States, it is known as the 988 Suicide & Crisis Lifeline (formerly the National Suicide Prevention Lifeline and the number 1-800-273-8255). In Canada, it is known as the 9-8-8 Suicide Crisis Helpline. In the United States, the 988 number was implemented in July 2022 as an evolution of its predecessor, a 1-800 number that began in ...
A vanity number is a local or free-to-call telephone number for which a subscriber requests an easily remembered sequence of numbers for marketing purposes. While many of these are phonewords (such as 1-800-Flowers , 313-DETROIT, 1-800-Taxicab or 1-800-Battery), occasionally all-numeric vanity phone numbers are used.
In the United States, a Social Security number (SSN) is a nine-digit number issued to U.S. citizens, permanent residents, and temporary (working) residents under section 205(c)(2) of the Social Security Act, codified as .
These are known in the industry as "central reservations offices". Staff members at these call centres take calls from clients wishing to make reservations or other inquiries via a public number, usually a 1-800 number. These centres may operate as many as 24 hours per day, seven days a week, depending on the call volume the chain receives. [29]
Example of caller ID spoofed via orange boxing; both the name and number are faked to reference leetspeak. Caller ID spoofing is a spoofing attack which causes the telephone network's Caller ID to indicate to the receiver of a call that the originator of the call is a station other than the true originating station.
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